I reloaded a config file then processed this step and the issue is fixed. Thank you so much. I really don’t know how I overlooked this step for so long.
I bought this P992 CRT monitor last October. Maybe a week later, I performed Windas calibration and convergence adjustment. However, since the adjustment, the monitor has developed a problem: whenever the power is cut off—even just using the power button to turn it off—the OSD becomes locked...